CN101588214B - System and apparatus for performing broadcast and localcast communications - Google Patents

System and apparatus for performing broadcast and localcast communications Download PDF

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Publication number
CN101588214B
CN101588214B CN2009101394141A CN200910139414A CN101588214B CN 101588214 B CN101588214 B CN 101588214B CN 2009101394141 A CN2009101394141 A CN 2009101394141A CN 200910139414 A CN200910139414 A CN 200910139414A CN 101588214 B CN101588214 B CN 101588214B
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data
broadcast
packet
mode
encoder
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CN2009101394141A
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Chinese (zh)
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CN101588214A (en
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L·J·卡尔
W·H·米切尔
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微软公司
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Priority to US60/302,831 priority
Priority to US10/044,294 priority
Priority to US10/044,294 priority patent/US7349691B2/en
Application filed by 微软公司 filed Critical 微软公司
Priority to CN02813348.X2002.07.03 priority
Priority to CN02813348.X priority
Publication of CN101588214A publication Critical patent/CN101588214A/en
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Publication of CN101588214B publication Critical patent/CN101588214B/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04HBROADCAST COMMUNICATION
    • H04H20/00Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/28Arrangements for simultaneous broadcast of plural pieces of information
    • H04H20/30Arrangements for simultaneous broadcast of plural pieces of information by a single channel
    • GPHYSICS
    • G04HOROLOGY
    • G04GELECTRONIC TIME-PIECES
    • G04G21/00Input or output devices integrated in time-pieces
    • G04G21/04Input or output devices integrated in time-pieces using radio waves
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827Portable transceivers
    • H04B1/385Transceivers carried on the body, e.g. in helmets
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04HBROADCAST COMMUNICATION
    • H04H20/00Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/18Arrangements for synchronising broadcast or distribution via plural systems
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
    • Y02D70/00Techniques for reducing energy consumption in wireless communication networks
    • Y02D70/20Techniques for reducing energy consumption in wireless communication networks independent of Radio Access Technologies
    • Y02D70/22Techniques for reducing energy consumption in wireless communication networks independent of Radio Access Technologies in peer-to-peer [P2P], ad hoc and mesh networks
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
    • Y02D70/00Techniques for reducing energy consumption in wireless communication networks
    • Y02D70/20Techniques for reducing energy consumption in wireless communication networks independent of Radio Access Technologies
    • Y02D70/26Techniques for reducing energy consumption in wireless communication networks independent of Radio Access Technologies in wearable devices, e.g. watches, glasses
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
    • Y02D70/00Techniques for reducing energy consumption in wireless communication networks
    • Y02D70/40According to the transmission technology

Abstract

Described is a communication system (100) including mobile communication devices (119). In the described system, the mobile devices may be wrist-worn watches (101, 121) such as are in common use today, except that the watches are specially configured to receive data in a broadcast mode (109) and transmit and/or receive data in a localcast mode (111). The localcast mode includes the ability to transmit and receive data in a peer-to-peer fashion (117), allowing mobile devices to communicate directly with each other. The ability to combine two of these communication modes in a small, integrated and hence inexpensive and low-power packet provides many advantages over existing personal communication device solutions.

Description

执行广播和局播通信的系统和设备 Implementation of systems and equipment multicast communication and broadcasting bureau

[0001] 本申请是申请日为2002年7月3日申请号为第02813348. X号发明名称为“执行广播和局播通信的系统和设备”的中国专利申请的分案申请。 [0001] This application is filed July 3, 2002 Application No. of No. 02813348. X entitled "System and apparatus for performing broadcast and multicast traffic bureau," the Chinese divisional patent application.

背景技术 Background technique

[0002] 在社会变得不断增加移动性,移动计算设备正在享受一股普及和增长的浪潮。 [0002] In the society becomes ever-increasing mobility, mobile computing devices are enjoying a wave of popularity and growth. 蜂窝电话、无线PDA(个人数字助理)、无线膝上型电脑和其它移动通信设备正在对主流客户进行给人印象深刻的侵袭。 Cellular phone, wireless PDA (personal digital assistant), laptop computers and other wireless mobile communication device is to mainstream customers impressive attack. 不过,制约这个增长和限制客户满意的,是缺乏真正足够大的覆盖区域的、便宜的、小的、电池有效的(battery-efficient)的无线通信系统。 However, constraints limit the growth and customer satisfaction, is the lack of truly large enough coverage area, cheap, small, efficient battery (battery-efficient) wireless communication system. 蜂窝数据传输基于电话的解决方案远非功率有效的,并强加了使它们不可使用的(相对的)成本和尺寸负担。 Cellular data transmission is far from power-efficient solution based on the telephone, and to make them unusable imposes a (relative) cost and size burdens. 同样,解决这些问题的其它尝试已经证明同样地不适合。 Similarly, other attempts to solve these problems have proved equally unsuitable. 例如,少数实体已经尝试利用通过频率调制(FM)的副载波(subcarrier)接收信息的设备。 For example, a few entities have tried to use the device information received by the frequency subcarrier (subcarrier) modulation (FM) is. FM副载波(也被称为"SCA”,即辅助通信授权(Subsidiary Communications Authorization))利用在FM 电台的可用调制带宽内FM立体声之上的可用频率。 FM subcarriers (also referred to as "SCA", i.e. subsidiary communications authorization (Subsidiary Communications Authorization)) over the use of the available modulation bandwidth of an FM stereo FM radio frequencies available. 副载波一般由广播电台租用,受FCC(联邦通信委员会(美))或其它国家条例(nationalregulation)管制。 Subcarrier generally rented by the radio station, by the FCC (Federal Communications Commission (US)) or other national regulations (nationalregulation) control.

[0003] FM副载波的一些实例包括由数据广播公司(Data BroadcastCorporation) (DBC) 拥有和维护的QU0TREK系统用于为手持移动设备提供股票报价(stock price quote)。 Some examples [0003] FM subcarrier includes a data broadcasting company (Data BroadcastCorporation) (DBC) has QU0TREK system maintenance and for providing stock quotes (stock price quote) for handheld mobile devices. 不过,QU0TREK系统是一个限于接收股票报价的单一目的系统。 However, QU0TREK system is a single-purpose system limited to receiving stock quotes. 这个系统具有各种其它限制, 使得它不能作为移动计算设备使用。 This system has various other limitations, such that it can not be used as a mobile computing device. 同样,精工公司(Seiko Corporation)实现一个FM副载波系统,在这个系统中可向一个腕戴式设备传输短消息。 Likewise, the Seiko Corporation (Seiko Corporation) implemented an FM subcarrier system, in this system, the transmission type wearable device a short message to the wrist. 不过,使用的硬件和通信方案是相对原始的,导致在消息传输中需要过多的冗余。 However, the hardware and communications scheme used is relatively primitive, resulting in a message transmission requires excessive redundancy. 这些和其它缺点致使精工系统不太可接受。 These and other drawbacks causing Seiko system less acceptable. 同样,某个寻呼系统是基于FM副载波使用的,诸如无线数据系统(RadioData System) (RDS)或移动广播系统(Mobile Broadcasting System) (MBS)系统。 Similarly, certain paging systems are based on FM subcarrier use, such as a wireless data system (RadioData System) (RDS) or Mobile Broadcasting System (Mobile Broadcasting System) (MBS) systems. 不过,那些系统涉及以广播方式用有限的数据速率传输的短消息。 However, those systems involve short messages transmitted in a broadcast manner with limited data rates. 令人遗憾的是,一个可接受的移动设备解决方案已经躲开了本领域的熟练技术人员。 Regrettably, an acceptable mobile device solution has been ducked skilled in the art.

[0004] 概述 [0004] Overview

[0005] 本发明提供一移动设备,它包括两个无线通信模式,一个广域模式,在其中可通过大的地区将数据广播至许多移动设备,以及一个局域模式,在其中通过局部地区传输数据。 [0005] The present invention provides a mobile apparatus which includes two wireless communications modes, a wide area mode in which a large area by the broadcast data to a number of mobile devices, and a local mode in which the transmission by the local area data. 在一个实施例中,广播模式被用于通过频率调制(FM)副载波系统广播数据,诸如在FM无线电电台带宽中不使用的部分中。 In one embodiment, the broadcast mode is used by a frequency modulation (FM) subcarrier broadcast data system, such as a part not used in the FM radio bandwidth of the radio. 另外,局播模式被用于通过相对短距离传输信息,诸如在一个办公室内或在一个公司场地上。 Further, Bureau multicast mode is for transmitting information over relatively short distances, such as within an office or on a field to the company. 移动设备,诸如专门设置的手表,在或者广播模式或者局播模式中接收传输。 The mobile device, to receive or transmit in broadcast mode or multicast mode Bureau wristwatch as specifically set. 在可替换的实施例中,可如一个独立的寻呼机或消息预订设备一样操作这个移动设备,或可将它造在一个移动电话设备中,诸如蜂窝电话。 In an alternative embodiment, it may be as a separate message or pager reservation device operating as the mobile device, or it may be built in a mobile telephone apparatus, such as a cellular phone. 有利地,这个移动设备不限于使用或者一广域传输系统(诸如蜂窝网络),或者一局部地区传输系统(诸如红外线通信链路),而是获得两者的好处。 Advantageously, the mobile device is not limited to the use or a wide-area transmission system (such as cellular networks), or a local area transmission system (such as an infrared communication link), but the benefit of both. 用户可利用局部地区传输系统接收来自用户的个人计算机或另一个移动设备的信息。 The user may receive a personal computer or other information from the user's mobile device using a local area transmission system. 这个用户也可利用广域传输系统接收更一般的感兴趣的信息,诸如可通过广播介质传输的,诸如股票报价等等。 The user can also use the wide-area transmission system to receive information of a more general interest, such as a broadcast transmission through the medium, such as stock quotes and the like. 局播模式还有利于提供或增强在不能接收正常的广播或接收较差的地区中的信息传输。 Bureau multicast mode is also beneficial to provide or enhance the transfer of information broadcast or received poor areas can not receive the normal.

[0006] 在一个方面,本发明提供一移动设备,它被配置为在广播模式和局播模式两者中接收无线传输。 [0006] In one aspect, the present invention provides a mobile device, which is configured to receive wireless transmissions in both the broadcast mode and a multicast mode Bureau. 移动设备被配置为通过FM副载波通信链路接收广播数据。 The mobile device is configured to receive broadcast data over FM subcarrier communication link. 广播数据是时间分集的并包括允许移动设备准确地接收广播数据的同步信息。 The broadcast data includes a time diversity and allows the mobile device receives a synchronization information broadcast data. 移动设备被配置为接收由局播发射机通过FM波段的局部不使用部分传输的局播数据。 The mobile device is configured to receive a broadcast transmitter does not use Board Board multicast portion of the transmission data by a local FM band. 这样,移动设备利用相同的无线电电子设备在广播和局播模式两者中通信,从而减少了体积大小和功率损耗。 Thus, the mobile radio device using the same electronic device both the multicast mode and the broadcast communications Bureau, thereby reducing the size of the volume and power consumption.

[0007] 在另一个方面,移动设备被配置为以对等方式通信,通过传输将信息通过局播通信链路传输至其它移动设备和从它们接收信息。 [0007] In another aspect, the mobile device is configured to communicate peer to peer manner, by transmitting information via broadcast communications link to the Bureau of other mobile devices and receive information from them. 移动设备在局部不使用的FM波段中发送和接收信息。 The mobile device transmits and receives information in the FM band in use is not local. 这样,可用与移动设备与膝上型计算机或个人计算机通过红外线IRDA通信相似的方式,在两个或多个移动设备之间共用信息,不需要附加的通信组件或电路。 Thus, the mobile device can be used with a laptop computer or a personal computer by a similar infrared IRDA communication, sharing of information between two or more mobile devices, no additional communication components or circuitry.

[0008] 在另外的一个方面,本发明提供一局播发射机,它被配置为通过局部地区且在FM 波段的局部不使用部分中传输数据。 [0008] In a further aspect, the present invention provides a game broadcast transmitter which is configured to transmit data in the local area and the unused portion of the FM band locally. 局播发射机可被耦合至个人计算机等等,并被配置为传输数据至移动设备或从它接收数据。 Bureau broadcast transmitter may be coupled to the personal computer and the like, and is configured to transmit data to or receive data from the mobile device it.

[0009] 在另外的一个方面,本发明提供一个通信系统,在其中移动设备在双模式中与系统通信。 [0009] In a further aspect, the present invention provides a communication system in which mobile devices communicate with the system in a dual mode. 在第一(广播)模式中,通过广域按一预定的时间表广播信息。 In a first (broadcast) mode, through a wide area by a predetermined schedule of the broadcast information. 可调度移动设备基于预定的时间表接收广播信息。 May schedule mobile device receives the broadcast information based on a predetermined schedule. 可在第二(局播)模式中通过非常小的地区另外传输其它信息。 A very small area by additionally transmit other information in the second (Bureau multicast) mode. 移动设备还被配置为通过局播模式发送和接收信息。 The mobile device is further configured to transmit and receive information via Bureau multicast mode.

附图说明 BRIEF DESCRIPTION

[0010] 图1是一个示例通信环境的功能方框图,在这个环境中可实现本发明。 [0010] FIG. 1 is a functional block diagram of an exemplary communication environment, the present invention may be implemented in this environment.

[0011] 图2是一个功能方框图,示出本发明在腕戴式设备中的一个实现,诸如手表。 [0011] FIG. 2 is a functional block diagram showing one implementation of the wrist-worn device of the present invention, such as a watch.

[0012] 图3是实现本发明的通信系统的广播发射机或电台发生器组件的功能方框图。 [0012] FIG. 3 is a functional block diagram of a broadcast transmitter or station generator component of a communication system according to the present invention.

[0013] 图4是实现本发明的通信系统的局播发射机组件的功能方框图。 [0013] a functional block diagram of a transmitter assembly 4 is a communication system according to the present invention FIG Board broadcast.

[0014] 图5-9是由实现本发明的通信系统用于传输的数据结构或格式的图形表示。 [0014] FIG. 5-9 is a communication system according to the present invention the transmitted data pattern for indicating the structure or format.

[0015] 图10是用于按照本发明的一个实现,在时间上将数据传输分散进行传输的图形表示。 [0015] FIG. 10 is a, the dispersion pattern on the data transmission time for transmission expressed in terms of one implementation of the present invention.

[0016] 图11给出在典型背景中从属的通信系统的概观。 [0016] overview of a communication system in a typical context dependent given in Figure 11.

[0017] 图12是一流程图,描述编码数据流用于传输的一种方法。 [0017] FIG. 12 is a flow chart illustrating a method for transmitting the encoded data stream.

[0018] 详细说明 [0018] Detailed Description

[0019] 本发明是在包括移动通信设备的通信系统背景下描述的。 [0019] The present invention is described in the communication system comprises a mobile communication device context. 在所描述的实施例中, 移动设备是腕戴式手表(watch),诸如现在普遍使用的,除了被专门配置为在“广播”模式和“局播”模式中通信的手表,如下面更详细地描述的。 In the embodiment described, the mobile device is a wrist-worn watch (Watch), such as a now widely used, in addition to being specially configured to watch the communication in a "broadcast" mode and the "Bureau broadcast" mode, as described in more detail below ground below. 在两个模式中通信的能力为现有的个人通信设备提供许多便利,如通过阅读下面的详细说明将变得显而易见的。 Providing communication capability to facilitate a number of conventional personal communication device in two modes, such as by reading the following detailed description will become apparent. 同样,在不脱离本发明精神的情况下,较少的偏离所述的实施例也将变得显而易见的。 Also, without departing from the spirit of the invention, minor deviation from the embodiments described it will become apparent.

[0020] 图1是实例通信系统100的功能方框图,这个系统受益于本发明的教导。 [0020] FIG. 1 is a functional block diagram of an example communications system 100, the system benefiting from the teachings of the present invention. 所公开的通信系统100包括三个主要的操作部件:手表101、广播发射机103和局播发射机105。 The disclosed communication system 100 includes three major operating components: a watch 101, broadcast transmitter 103 and local multicast transmitter 105. 如在图1中所示的,广播发射机103发射广播信号(例如广播信号109),通过FM副载波,至多个移动的或固定的设备,包括手表101和计算机115。 The transmit broadcast signals (such as a broadcast signal 109), shown in FIG broadcasting transmitter 1103, via FM subcarrier, to a plurality of mobile or fixed devices, including the watch 101 and a computer 115. 计算机115可附属于局播发射机105 并且发射局播信号(例如,局播信号111)至与计算机115直接邻近处的移动设备。 Board computer 115 may be attached to the transmitter 105 and transmit broadcast signals broadcast Board (e.g., local broadcast signal 111) to the mobile device and the computer 115 directly adjacent. 局播发射机也可被配置为通过例如以太网连接直接耦合至因特网。 Bureau broadcast transmitter may also be configured to be coupled to the Internet through a direct connection such as an Ethernet. 下面结合图2-4更详细地描述手表101、广播发射机103和局播发射机105。 Described in more detail below watch 101, broadcast transmitter 103 and local multicast transmitter 105 in conjunction with Figures 2-4.

[0021] 所公开的通信系统100具有三个主要的操作模式:副载波广播模式(“广播(broadcast)”),局播模式(“局播(broadcast)")和对等模式(“对等(Peer-to-Peer) ”)。 [0021] The disclosed communication system 100 has three main operating modes: a subcarrier broadcast mode ( 'broadcast (broadcast) "), Bureau multicast mode (" Board broadcast (Broadcast) ") and a peer to peer mode (" peer (Peer-to-Peer) "). 虽然为了讨论在这里引入,但是后面更详细地描述这些操作模式的每一个。 Although for discussion is incorporated herein, but is more behind each of these modes of operation described in detail. 手表101的正常操作是通过FM副载波(例如,广播信号109)接收数据广播。 Normal operation of the watch 101 is receiving data broadcast via FM subcarrier (e.g., broadcast signal 109). 局部直接FM“局播”接收模式也是可用的(例如,局播信号111)。 Local direct FM "broadcast Board" receiving mode is also available (e.g., local broadcast signal 111). 手表也可被配置为一对一地以如局播信号117所示的半双工双向消息模式(half-duplex two-way messaging mode),与附近的手表121、其它移动设备119或甚至固定计算机系统通讯。 Watches may also be configured to be one-half-duplex bi- such as local news broadcast signal mode (half-duplex two-way messaging mode) 117 shown, with nearby watches 121, other mobile device 119, or even fixed computer system communication. 最后,可在局播对话期(session)期间将应用数据传送至手表。 Finally, sowing period in office during the conversation (session) application data sent to your watch. 另外,虽然这里在基于手表的系统中描述,但是本申请的教导对于许多其它的移动设备具有同样的可用性,诸如便携式计算机、个人数字助理(PDA)、蜂窝电话等等。 Further, although described herein in the watch-based system, the teachings of the present application to many other mobile devices have the same availability, such as a portable computer, a personal digital assistant (PDA), a cellular phone and the like. 手表的使用是用于说明的目的,只是为了简化下面的讨论,并且可互换地使用“移动设备”。 Using the watch is for the purpose of illustration, only to simplify the following discussion, are used interchangeably and "mobile device."

[0022] 转到图2,手表101是由四个子部件组成:环腕表带天线(wrist-loopwatchband antenna) 205,模拟无线电(analog radio) 207,数字收发机(digitaltransceiver) 209 和微计算机组合(Micr ocomputer assembly) ( “MCU”)211。 [0022] Turning to Figure 2, the watch 101 is composed of four sub-components: band antenna loop watch (wrist-loopwatchband antenna) 205, an analog radio (analog radio) 207, a digital transceiver (digitaltransceiver) 209 and a microcomputer composition ( Micr ocomputer assembly) ( "MCU") 211. 在这个实施例中,天线205包括一个表带环形天线和分立的模拟调谐元件。 In this embodiment, the antenna 205 includes a watchband loop antenna and discrete analog tuning elements. 天线205可以是一个嵌入在表带中的导电环(conducting loop)。 The antenna 205 may be embedded in a conductive loop (conducting loop) of the strap. 在这个实施例中,导电环是一个小环形天线。 In this embodiment, the conductive ring is a small loop antenna. 对于腕戴式移动设备, 天线的选择性(或“Q”值)可以小于理想值(ideal),由于天线的尺寸(例如约略为表带的长度)与信号的波长(例如,FM波段频率)相对小的比率。 For the wrist-worn mobile devices, the selectivity of the antenna (or the value "Q") may be less than ideal (Ideal), since the size of the antenna (e.g., for the approximate length of the band) and the wavelength of the signal (e.g., FM band frequencies) a relatively small ratio. 对于那个原因,天线可被耦合至可变的调谐元件(例如,可变电抗器(varactor)),并被周期性地重新调谐,诸如对于每个预定的消息接收、基于一个时间表(time schedule)等等。 For that reason, the antenna may be coupled to a variable tuning element (e.g., a varactor (Varactor)), and is periodically retuned, such as for each receiving a predetermined message based on a schedule (time schedule), and so on.

[0023] 天线耦合至收发器209,并由收发器209控制。 [0023] Antenna 209 is coupled to a transceiver, the transceiver 209 by the control. 在MCU211和无线电部件之间的事务处理间接通过MCU数字收发器接口(MCU-digital transceiverinterface)。 And transactions between MCU211 member indirectly through the radio transceiver interface digital MCU (MCU-digital transceiverinterface). 手表的部件被收藏在手表大小的封装中并依靠电池电源工作。 Member is housed in the watch wristwatch size and package operating on battery power.

[0024] 在一个实施例中,MCU211包括一个32位通用CPU、RAM与闪存、IXD显示器和包括但不限于按钮和转动前盖框(rotating bezel)的用户接口硬件。 [0024] In one embodiment, MCU211 comprises a 32-bit general purpose CPU, RAM and flash memory, IXD, and include but are not limited display buttons and a front cover frame is rotated (rotating bezel) of the user interface hardware. 还包括电源和时钟电路。 Further comprising a power supply and a clock circuit. MCU的功能是控制OSI (开放系统互连)第2层之上的功能,包括运行操作系统、应用软件、 显示、连接和数据选择活动,以及在物理层上驱动用户1/0(输入/输出)设备。 The MCU is a control function of the OSI (Open Systems Interconnection) layer 2 functions above, including an operating system, application software, a display, connection and data selection activities, as well as the user drives 1/0 (input / output on the physical layer )device. 它通过收发器209与手表的其它部分接口。 It is to the rest of the transceiver 209 and the watch interface.

[0025] 收发器209 —般包括两个部件,一个对收发器进行控制、调度和后处理任务的数字信号处理器(DSP) 211,和一个实时设备(RTD) 223,它包括一个数字无线电并执行系统定时的功能和实时事件分配(dispatch)。 [0025] Transceiver 209 - as comprising two parts, a transceiver control, scheduling and post-processing tasks a digital signal processor (DSP) 211, and a real-time device (RTD) 223, which includes a digital radio and execution system timing functions and real-time event assignment (dispatch). 在一个实施例中,RTD223可以是现场可编程门阵列(FPGA)加上分立的模拟无线电207。 In one embodiment, RTD223 may be a field programmable gate array (FPGA) plus a discrete analog radio 207. 在一个可替换的实施例中,RTD的功能被分配给DSP221 和MCU211,取消对一个独立的RTD设备的需要。 In an alternative embodiment a, RTD functions are assigned to DSP221 and MCU211, eliminate the need for a separate RTD device. 可替换地,DSP可以是一个DSP核心加上足以完成所要求的任务的RAM,并且可与MCU和它的存储器与外部设备一起嵌入在一个单一设备中。 Alternatively, a DSP may be a DSP core plus sufficient RAM to accomplish the desired task, and may be embedded in a single device with the MCU and its memory and an external device. DSP功能也可通过给诸如ARM7处理器系列这样的合适的CPU的适当的CPU指令实现。 DSP functions may also be achieved by an appropriate CPU instructions given a suitable CPU such as the ARM7 processor family such.

[0026] DSP221被耦合至MCU211,并由MCU211指挥收发器任务。 [0026] DSP221 is coupled to MCU211, by directing transceiver MCU211 task. 由于MCU211可能不知道在副载波链路上的事件的实际定时,由DSP实际解释它的命令是必要的。 Since MCU211 may not know the actual timing of events in the sub-carrier link, actually explain it by the DSP command it is necessary. 换句话说,可指示MCU211(通过用户交互或控制)取回已知通过通信网络被广播的所选择的数据。 In other words, the data may indicate MCU211 retrieved via communication networks are known in the selected broadcast (through user interaction or control). MCU211被配置为将所标识的和所选择的数据分解成特定的分组号码或标识符,诸如通过使用一个查找表或相似的功能。 MCU211 configured to the identified and selected data into particular packet numbers or identifiers, such as by using a lookup table or similar function. MCU211将这个信息传递至DSP221,DSP221依次将特定的分组号码或标识符分解成实际的定时,依据这个定时调度接收器开始接收。 This information is transmitted to MCU211 DSP221, DSP221 sequentially particular packet numbers or identifiers into actual timing of decomposition, according to this timing to start receiving the receiver scheduler.

[0027] DSP的一个主要任务是处理在或者广播模式或者局部模式中接收的数据。 The main task of a [0027] DSP is to process data received in a broadcast mode or a partial or mode. 这个处理包括副载波相位恢复、波特(baud)恢复和/或跟踪、补偿衰落效应、解调、解交织、信道状态估计和软判决卷积(维特比(Viterbi))纠错。 This processing includes subcarrier phase recovery, baud (Baud) recovery and / or tracking, compensation for fading effects, demodulation, deinterleaving, channel state estimation and soft-decision convolutional (Viterbi (the Viterbi)) error correction. 分组的后处理在已经接收整个分组时发生。 After processing packets occurs when the entire packet has been received. 虽然这在局部模式情况下捕获之后立即发生,但是副载波分组被捕获在时间分离的片断中,名义上经过一个帧过程。 While this occurs after a partial capture mode in the case immediately, but subcarrier packets are captured in time in the isolated segment, nominally a frame through the process. 这些捕获的片断被存储在DSP221的存储器中。 These captured segments are stored in a memory DSP221.

[0028] 在DSP221控制任务中有,将请求的副载波分组号码译成精确的包括分组的广播片断组,调度每个片断的接收,将这个调度与来自其它请求分组的其它片断交织,和形成低层命令至RTD223以完成这些任务。 [0028] In the control task has DSP221, the requested subcarrier packet numbers translated into precise fragments comprising receiving a broadcast group, scheduling each packet fragment, this scheduling with other segments from other requested packets interleaved, and form low-level commands to RTD223 to complete these tasks. 它还跟踪每个活动的广播电台相对于RTD的本地时钟的定时以调整各种电台之间的时钟偏差和帧偏移(frame offset)。 It also tracks each active broadcast station relative to the timing of the local clock of the RTD to adjust the clock skew between the various stations and frame offset (frame offset). DSP221还负责探测和获得每个实际的和可能的广播电台的定时,如按MCU211请求的。 DSP221 is also responsible for detecting and obtain the actual and possible timing of each broadcaster, such as by MCU211 request.

[0029] RTD223的任务是双重的(two-fold)。 Mission [0029] RTD223 is twofold (two-fold). 它的数字部件包含系统时基,包括为MCU211 和DSP221提供系统时钟的晶体振荡器。 Its digital section contains system time base, comprising providing a system clock of the crystal oscillator MCU211 and DSP221. 时基还为发送和接收操作提供波特和采样定时,开始/停止对无线电操作的控制,和控制对于MCU211和DSP221的时钟暂停的周期。 When the base also provides baud and sample timing for the transmit and receive operations, start / stop control for radio operation, and controls the clock pause cycle MCU211 and the DSP221. 其它任务当然是无线电操作。 Of course, other tasks radio operation.

[0030] RTD223无线电操作包括副载波和局部模式两者的接收,和局部模式传输。 [0030] RTD223 operation includes receiving radio, and local mode transmission of both the subcarrier and local mode. 这些任务使用普通元件的实际号码。 These tasks using the actual number of common elements. 无线电207接收或者副载波片断或者局部模式分组,将接收的、过滤的基带转换的模拟到数字(baseband-convertedA-to-D)样值(sample)存储在本地RAM中。 The radio 207 receives a subcarrier or segment or partial packet mode, the received analog baseband-to-digital conversion filter (baseband-convertedA-to-D) samples (sample) is stored in a local RAM. 当在局部模式中传输时,这个RAM由DSP221填入预先计算的传输样值,然后由RTD223使用它们以产生用于局部模式传输的FSK(频移键控)信号。 When transmitting in the local mode, this RAM is filled previously calculated transfer samples from the DSP221, and then use them to generate a RTD223 FSK for localized transmission mode (frequency shift keying) signal.

[0031] 在数据捕获期间自动停止至MCU211和DSP221的时钟,并在之后立即重新开始。 During the automatic stop [0031] In the data capture clock to MCU211 and DSP221, and immediately after the restart. 当准备动作(warm-up)事件触发时,约略在捕获之前lms,将一个警告中断送至MCU211。 When preparing the action (warm-up) event is triggered, roughly before capturing lms, will interrupt a warning to the MCU211.

[0032] 移动设备/手表接收器操作 [0032] The mobile device / Watch Receiver Operation

[0033] 在副载波广播模式中,手表收发机209在只收模式中。 [0033] In the subcarrier broadcast mode, the watch transceiver 209 in a receive-only mode. 当MCU命令收发机209接收一个广播分组时,DSP查看它在所指示的电台上的跟踪信息。 When the MCU commands the transceiver 209 receives a broadcast packet, DSP view its tracking information on the station indicated. 如果在这个电台上不存在信息,则接收请求被中止并返回MCU —个错误。 If the information does not exist on this radio station, then receives the request is aborted and returned MCU - a mistake. 使用这个信息,DSP确定组成分组的16个片断的预期到达时间。 Using this information, DSP determine the expected grouping consisting of 16 pieces of arrival time. 产生一个片断接收命令列表并将它存储在DSP存储器中。 Generating a list of segment receive commands and store it in the DSP memory.

[0034] DSP的分配功能监控待处理的接收片断的列表,可包括几个待处理的分组请求的片断。 Receiving a list of fragment [0034] DSP to monitor the distribution function to be treated, may include fragments of several pending packet requests. 当一个给定的片断捕获时间靠近的时候,分配功能将一系列命令传递至RTD。 When a given piece of capture time close, distribution function will be a series of commands transmitted to the RTD. 这些命令包括频率、天线调谐参数、捕获的持续时间和开始时间。 These commands include the frequency, antenna tuning parameters, duration of capture, and start time. DSP在这时可进入一个睡眠状态。 At this point DSP may enter a sleep state. RTD的硬件时间比较器然后依次触发每个命令。 RTD hardware trigger time comparator followed each command. 典型地,这些命令是“准备动作”、“捕获”和“停止”。 Typically, these commands are "ready to move", "capture" and "stop." 在发出准备动作命令时,同时通知MCU时钟将要停止。 When issuing preparatory operation command, notify the MCU clock will be stopped. 准备动作过程约略持续lms。 Ready to continue the course of action roughly lms. 当捕获命令执行时,时钟停止,并且当捕获随着停止命令结束时时钟再继续。 When the capture command is executed, the clock is stopped, and when the capture as the end of the clock stop command to continue.

[0035] DSP在命令完成时被中断,并且立即取回所捕获的数据。 [0035] DSP is interrupted on command completion, and immediately retrieves the captured data. 这可包括来自几个片断的数据,如果存在不间断的被请求片断。 This may include data from several segments, if there is uninterrupted segment is requested. 片断数据然后被存储为一组信号采样值。 Fragment data is then stored as a set of signal samples. 这要求每源数据位4字节,加上开销,或者每片断约300字节。 This requires 4 bytes per source bit of data, plus overhead, or about 300 bytes per segment. 因为,在一个实现中,RTD具有2560字节的内存储器,所以这将连续片断接收限制在8个片断。 Because, in one implementation, RTD has 2560 bytes of internal storage, this would limit consecutive segment reception eight pieces. 这是首先出现的较小限制,因为在传输之前,一个散列函数将逻辑分组(并因此,逻辑片断)与邻近的一个分开。 It appears first is less restrictive, because prior to transmission, a hash function logical groupings (and hence, logical segments) with a separate adjacent. 这样,分组只是偶然地连续起来,不是因为它们在内容上相关。 Thus, the packet continuously up only occasionally, not because they are related in content.

[0036] 当接收到一个分组的最后片断时,DSP收集所接收的片断并开始后处理作为一组接收的信号样值取回的数据。 [0036] Upon receiving the last packet of a segment, DSP received fragments collected after the start of treatment and as a set of received signal samples retrieved data. 操作的一般流程是这样:定时恢复、数据解调和卷积译码(错误纠正)(在一个实施例中,用维特比(Veterbi)算法)。 The general flow of operation is this: Timing Recovery, data demodulation and convolutional decoding (error correction) (In one embodiment, the Viterbi (Veterbi) algorithm). 这个过程可持续几毫秒每分组。 This process may last a few milliseconds per packet. 然后将最后所得到的数据分组和接收状态信息一起放入DSP存储器中的一个接收数据块(receive block)中,并通知MCU—个新的分组可用。 Was then put into the reception state information and the packet data obtained at the end of a DSP memory with the received data block (receive block) and notifies MCU- new packet is available.

[0037] 在广播模式中传输 [0037] In broadcast mode transmission

[0038] 在所公开的实施例中,广播数据在数据传输网络中心(见图11,1101)被划分成两个组:正常等待时间数据(normal-latency data)或“正常帧数据(normal frame data)”, 以及“快速帧数据(fast frame data)”。 [0038] In the disclosed embodiment, broadcast data is divided into a data transmission network center (see Figure 11,1101) into two groups: the normal latency data (normal-latency data) or "normal frame data (normal frame data) ", and" fast frame data (fast frame data) ". 数据中心与广播帧速率同步地将帧数据由卫星或相似的方法传递至广播发生器。 Data center frame rate in synchronization with the broadcast data frames transmitted by a satellite broadcast or a method similar to the generator. 可按数据块传递数据。 You can transfer data block. 例如,可发送正常帧数据,继之以一个快速帧部分。 For example, the normal frame data may be transmitted, followed by a fast frame section. 稍后,如在图5和图7上所示,发送下一个快速帧部分,继之以任何后续的快速帧部分。 Later, as shown in FIG. 5 and FIG. 7, a next fast frame transmission section, followed by any subsequent fast frame section to. 在每个帧中重复这个过程。 This process is repeated in each frame.

[0039] 更深入地考虑广播模式,图3示出一个示例性广播发射机103 (也被称为“电台发生器(station generator)”或简单地“发生器”)。 [0039] more in-depth consideration of the broadcast mode, FIG 3 shows an illustrative broadcast transmitter 103 (also referred to as "generator station (station generator)" or simply "generator"). 广播发射机103是副载波信道发射设备,并驻留在一个发射FM的电台上。 Broadcast transmitter 103 is the subcarrier channel transmitting device, and resides at a transmitting FM radio is on. 它通过卫星或其它专用高速电路接收格式化的数据、 编码数据用于传输、将编码的数据转换成FM副载波基带信号,并将这个波形传递至无线电台的广播设备。 It receives formatted via satellite or other dedicated high-speed circuit data, encoded data for transmission, converts the encoded data to FM subcarrier baseband signals, and passes this waveform to the radio broadcasting device.

[0040] 广播发射机103,在任何给定时间,具有它管理的两个数据阵列。 [0040] The broadcast transmitter 103, at any given time, has two data arrays that it manages. 一个是输出FM副载波帧图像501 (见图5并在下面描述),将它一个字节一个字节地按照输出波特时钟传递至一个硬件调制器功能。 A is the output FM subcarrier frame image 501 (see FIG. 5 and described below), it will be transferred byte by byte to a hardware modulator function according to the output baud clock. 另一个数据阵列是卫星输入缓冲器,由来自卫星链路接口319的HDLC(高级数据链路控制)数据块的数据有效载荷填入这个缓冲器。 Another data array is the satellite input buffer, the HDLC data from the satellite link interface 319 (high-level data link control) data block payload fill the buffer. 这个接口用任意数量的常规协议实现,诸如,但不限于RS-422、RS-232、USB、IEEE1394或以太网接口。 The interface with any number of conventional protocols, such as, but not limited to RS-422, RS-232, USB, IEEE1394, or Ethernet interfaces. 在图6中示出HDLC帧的描述。 Shown in FIG. 6 described in the HDLC frame. 本领域中的熟练技术人员将认出HDLC为高级数据链路控制(High-Level DataLink Control)-一个标准化的、面向位的、交换的和非交换的协议。 Those skilled in the art will recognize the skilled to Level Data Link Control HDLC (High-Level DataLink Control) - a standardized exchange protocol and the non-bit-oriented exchange. HDLC的一种描述可至少在ISO标准IS03309和IS04335中找到。 A description of HDLC may be found in the ISO standard IS03309 and IS04335 least. 如在图11中高层示意图上所示,来自数据中心1101的数据流(“起点(head-end) ”)的数据流通过卫星1103至每个广播发射机1107。 As shown in the schematic view in top 11, the data stream from the data center 1101 ( "starting point (head-end)") data stream 1103 via satellite 1107 to each broadcast transmitter. 这个数据以按照一组HDLC点对多点过程的HDLC数据块发送。 This data is sent in HDLC blocks according to a set of HDLC point-process. 这些数据块具有相应于各个副载波分组的数据有效载荷。 These data blocks corresponding to the respective sub-carriers having the packet data payload. 发生器1105只接受对它寻址的数据块,或者向一些它是其成员的组寻址的数据块。 Generator 1105 accepts the data block addressed to it, or some of it to be a member of the group addressed data block. 发生器然后将来自这些数据块的数据放入它当前正在建立的帧中。 The generator then data from these blocks into the frame it is currently being established. 在一个实施例中,HDLC格式被改变以创建一个4字节的地址字段,用一个层次化的方式在这个字段中分配地址。 In one embodiment, HDLC format is modified to create a 4 byte address field, an address allocated in this field with a hierarchical manner. 这样,通过在更低的排序字节中放置通配符值诸如Oxff或Oxfe能选择连续地更小的组,有利地减少卫星带宽,使得只需一个信道来处理所有的电台生成器。 Thus, by placing wildcard values ​​such as lower byte ordering Oxfe Oxff or continuously can be selected in smaller groups, advantageously reducing satellite bandwidth so that only one channel to handle all station generators.

[0041] 由于副载波帧ECC(纠错码)编码的性质,去往一个给定的输出帧的输入数据应该在副载波帧传输的开始之前的几秒钟可供使用。 [0041] Because of the nature of the subcarrier frame ECC (error correction code) encoding of the input destined for a given output frame data should be available before the start of frame transmission subcarriers of a few seconds. 一个例外是“快速分组(fast packet)”数据,它只需要早于它所在帧的四分之一帧(quarter-frame)。 One exception is the "fast packet (fast packet)" data, it only needs to be earlier than in the quarter-frame (quarter-frame) frame.

[0042] 回到图3,广播发射机103 —般包括下列组件:一个控制处理器301,一个准确的时基,一个串行I/O控制器305,一个编码引擎309,和一个副载波信号生成器313。 [0042] Returning to Figure 3, broadcast transmitter 103-- generally includes the following components: a control processor 301, an accurate time base, a serial I / O controller 305, an encoding engine 309, and a subcarrier signal generator 313. 本领域的熟练技术人员将意识到控制处理器(301)可通过利用常规的处理设备实现,诸如,但不限于微处理器、微控制器、可编程逻辑阵列、可编程门阵列或ASIC(应用专用集成电路)。 Those skilled in the art will recognize that the control processor (301) can be implemented using conventional processing apparatus, such as, but not limited to a microprocessor, microcontroller, programmable logic array, programmable gate array or an ASIC (application Application Specific Integrated Circuit).

[0043] 控制处理器301保持系统的状态,接受周期性的命令和来自上行链路的控制信息,产生周期报告,计算和调整本地时基以考虑到关于上行链路主机的定时漂移,以及控制广播发射机的工作方式。 [0043] The control processor 301 to maintain the state of the system, accepts periodic commands and control information from the uplink, the report generation period, when calculating and adjusting the local time base to account for timing drift uplink host, and controls It works broadcast transmitter. 它还提供一个直接RS_232(DCE(数据通信设备))控制端口315用于本地命令和设定。 It also provides a direct RS_232 (DCE (data communications equipment)) control port 315 for local command and set. 控制端口315还可用任意数量的常规协议实现,诸如,但不限于RS-422、USB或以太网接口。 The control port 315 may be any number of conventional protocols, such as, but not limited to RS-422, USB or Ethernet interface.

[0044] 信号发生器的精确时基包括一个百万分之一(1-ppm)振荡器,它可被调整以跟踪在上行链路主机上的具有亿分之一(0. Olppm)分辨率的主时基(mastertime-base)。 [0044] The precise time base signal generator comprises a millionth (1-ppm) oscillator, which can be adjusted to track on the uplink host having one billionth (0. Olppm) Resolution when the main base (mastertime-base). 名义上在整点小时上,将通知每个发生器校正当前时间至一个约略100微秒的精度,为传输延迟调整。 Nominally on the hour hour, each generator will notify correct the current time to a precision of roughly 100 microseconds, adjusted for the propagation delay. 传输延迟可基于一个已知的、固定的路径(较佳的),或者可由一个NTP(网络终端协议)协议握手计算得到。 Transmission delay may be computed based on a known, fixed path (preferred), or may be an NTP (Network Terminal Protocol) protocol handshake.

[0045] 串行I/O控制器305通过通信接口例如RS-422串行接口319,与上行链路设备(有可能一个卫星收发机)通讯。 [0045] The serial I / O controller 305 through the communication interface, for example, RS-422 serial interface 319, the uplink device (likely a satellite transceiver) communications. 数据格式可以是HDLC。 Data format is HDLC. SRAM(静态存储器)321可附属于串行I/O控制器305用于输入缓冲。 SRAM (static memory) 321 may be attached to the serial I / O controller 305 for input buffering.

[0046] 编码引擎309取得从上行链路接收的帧,将分组散列并物理地放在帧内,通过编码和时间分集各级处理它们,以及产生一个输出图用于传输。 [0046] The coding engine 309 to obtain an uplink frame received from the packet and the hash intra physically placed, through coding and time diversity to process them at all levels, and generating an output for transmitting FIG. 这个组件可以是FPGA。 This component can be a FPGA. SRAM323附属于编码引擎309用于工作存储。 SRAM323 attached to work encoding engine 309 for storage.

[0047] 副载波信号发生器313提供副载波调制器,传输滤波器,和放大功能。 [0047] sub-carrier signal generator 313 provides the subcarrier modulator, transmit filter, and amplification functions. 它从编码引擎的输出数据图以波特率抽取。 It is extracted from the output data at the baud rate of the encoding engine of FIG. 副载波信号发生器313可在FPGA、大的采样R0M(sample ROM)中实现,并且副载波信号发生器包括,在一个实施例中,一个数模转换器和一个模拟输出滤波器。 Sub-carrier signal generator 313 may be implemented in the FPGA, a large sample R0M (sample ROM), and the sub-carrier signal generator comprises, in one embodiment, a digital to analog converter and an analog output filter.

[0048] 转到图12,在一个实施例中,帧编码是由当前输出四分之一帧中的数据减少通过了某个阈值的剩余部分而触发的,在1203。 [0048] Turning to Figure 12, in one embodiment, the encoded frame is quarter-frame data outputted by the current through the remaining portion of a reduced threshold triggered, in 1203. 在一个实例中,这个阈值每帧发生4次,在传输下一个四分之一帧(包含四分之一的正常帧和所有下一个“快速帧”数据)开始之前。 In one example, this threshold occurs 4 times per frame, a quarter-frame in a transmission (including a quarter of the normal frame and all of the next "fast frame" data) before start. 用于一个实施例的阈值事件是在当前部分中剩余2秒的数据。 To one embodiment of the threshold event data is two seconds remaining in the current section. 所有编码引擎处理必须在这个期间发生。 All encoding engine processes must take place during this period. 对于输出定时在启动时的初始条件是从起点接收帧完成(frame-done)消息。 The output timing of the initial condition at startup completion is received from a beginning of the frame (frame-done) message.

[0049] 发生器交织(或,等价地“散列”)分组以防止相当数量的相关信息以顺序的“无线广播(on-air)”分组到达移动设备接收机。 [0049] The generator interleaves (or, equivalently, a "hash") packets in order to prevent a considerable amount of information in a "wireless broadcast (on-air)" packet reaches the mobile device receiver sequence. 这可能是必要的,在一些实施例中,因为接收机硬件可能对连续分组接收有限制。 It may be necessary, in some embodiments, because receiver hardware may have limitations reception of consecutive packets. 假定数据以顺序的分组呈现至发生器。 Assumed that the data packets in order to render the generator. 逻辑分组顺序在移动设备接收机输出处重新创建;因此,这个散列过程对于数据中心和手表是透明的。 Logical packet order recreated at the receiver output at the mobile device; therefore, this hashing process to the data center and watch is transparent. 在开始编码时,编码引擎从I/O数据块的存储SRAM中以散列的分组顺序1205读取分组。 At the beginning of coding, a packet sequence encoding engine reads packets from the hash memory 1205 SRAM I / O data block. 在时间片基础上与I/O数据块共享对I/O数据块SRAM的访问。 Shared access to I / O data to the SRAM block I / O data blocks on a time slice basis. 在I/O数据块SRAM中未标记为完成的分组,当在1207被读取时,被认为是空或无效的(null),并可在1209用一个替换的模式代替。 In I / O block of SRAM data packets not marked as completed, when read in 1207, it is considered to be empty or invalid (null), and can be replaced with a replacement pattern in 1209.

[0050] 在以被交织的顺序读取每个分组时,它被传递通过一个数据白化器(datawhitener),在1211由这个白化器在数据和白化模式(whitening pattern)之间进行异或。 [0050] When reading each packet interleaved in the order, it is passed through an exclusive OR data whitener (datawhitener) in 1211 by the whitener between the data pattern and whitening (whitening pattern). 白化模式,在一个实施例中,可以是一个表和正被处理的分组的分组编号的函数。 Whitening pattern, in one embodiment, it may be a function of a table and the packet number of the packet being processed. 在1213被白化的数据然后被传递至卷积编码器。 Then transferred to a convolutional encoder to be whitened in the 1213 data. 在一个实现中,可使用一个1/2码率、约束长度9、尾部补位(tail-bitting)的卷积编码器。 In one implementation, using a rate 1/2, constraint length 9, fill tail bits (tail-bitting) of the convolutional encoder. 这种类型的编码器为每个输入位产生2个输出位,并扩展每个输入位的信息内容越过几个后续的输出位对(bit-pair),具有以尾部补位方式把最后的输入位耦连至第一输入位。 This type of input bits for each encoder produces two output bits, and the extension information content of each input bit across several subsequent output bits (bit-pair), having a tail to fill the last bit mode input a first input coupled to the bit position. 编码器的输出,对每个输入位由一对位构成, 然后在1215被作为两个流传递至两个独立的位交织模块。 The output of the encoder, constituted by a pair of bits for each input bit, is then passed as two streams to two separate bit interleaving module 1215. 在1217位交织模块使用分组号码和位索引将编码的位放入输出帧图SRAM中的片断中。 Using the packet number and the bit index interleaving module 1217 into the output coded bits in the frame of FIG SRAM fragment. 在一个实施例中,位交织器是简单的模加法器(modular adder),它将一个位的位置调换到另一个,并被设置,以便尽可能少的相关编码器输出位留在同一输出片断中。 In one embodiment, the bit interleaver is simple modulo adder (modular adder), which will replace a bit position to another, and arranged so that as few related encoder output bits remain in the same output segment in. 一个方法是旋转编码器位线性地通过16个片断,以便输出编码器的第17个位将是到第一个片断的第二个位,而出来的第18个位将是到第二个片断的第二个位,等等。 One method is a rotary encoder bits linearly through the 16 segments, so that the output of the encoder 17 to the first bit will be a segment of a second bit, and 18th bit out will be the second segment the second bit, and so on. 这个过程也在图10中所示。 This process is also shown in FIG. 10.

[0051] 这两个输出流然后在1219被结合,以来自每个流的一个位提供每个输出符号的两个位。 [0051] The two output streams are then combined in 1219 to one bit from each stream providing the two bits of each output symbol. 这样创建的2048个符号然后被划分成16个片断,每个片断64个符号(见图12 的1221)。 2048 symbols thus created is then divided into 16 segments, each segment 64 symbols (see FIG. 122 112) is. 在1223产生片断首部,片断首部允许接收的移动设备迅速地识别片断边界和确定在当前帧中放置的位置。 Generating header segment in 1223, allows the receiving mobile device to quickly identify the header segment and the segment boundaries are placed at the determined position of the current frame. 这个分散(scattering)和分发(distribution)通过时间分集提供衰落保护。 This dispersion (Scattering) and distribution (distribution) provides fading protection through time diversity. 接收机能够重新构造整个消息,不论一个或多个片断被严重地损害或甚至丢失,给剩余的片断最小的损害。 Receiver can reconstruct the entire message, whether one or more segments being seriously impaired or even missing, given minimal impairment to the remaining segments. 这个衰落保护对于快速帧分组被减少,但是在片断之间的几秒钟分离度仍然良好。 The fading protection for fast frame packet is reduced, but still good for a few seconds in the degree of separation between the pieces. 这个冗余卷积编码在没有显著的衰落时,还提供相当可观的高斯噪声保护。 The redundant convolutional encoding in the absence of significant fading, also provides considerable Gaussian noise protection. 因为维特比(Viterbi)算法在极度吵闹或衰落的环境中会失败,所以在一个实施例中,CRC-16错误检验可被用于应用数据中。 Since Viterbi (the Viterbi) algorithm is extremely noisy or fading environment will fail, in one embodiment, CRC-16 error check could be used in the application data.

[0052] 一个符号一个符号地在发送时钟定时下进行数据的调制。 [0052] a modulated symbol to a symbol data in the transmission timing of the next clock. 这要求在调制器需要相关部分的第一个符号的时候之前,帧数据部分准备好用于传输。 This requires time before the first symbol modulator needs related portion, the data portion of the frame is ready for transmission. 第一个快速帧和正常数据帧必须在帧501 (图5)开始时准备好。 The first fast frame and the normal data frames must be ready when the frame 501 (FIG. 5). 后续的快速帧必须在它们的帧的四分位数(quartile)进入调制器(如图3示于313)之前被处理和被插入。 Rapid subsequent frames must enter modulator quartile (QUARTILE) their frames (313 shown in FIG. 3) is processed and is inserted before. 一旦已经构造初始的帧(包含正常帧和第一快速帧),它可用于调制器以传输。 Once the initial configuration has a frame (containing the normal frame and first fast frame), which can be used to transmit modulator. 在一个实施例中,广播模式使用在FM基带内中心位于67,647Hz的FM副载波,并使用QPSK (正交相移键控)对数据调制。 In one embodiment, the broadcast mode FM subcarrier centered at 67,647Hz within the FM baseband, using QPSK (Quadrature Phase Shift Keying) modulation on the data.

[0053] 现在转到图4,示出一个示例性的局播发射机105。 [0053] Turning now to FIG. 4, there is shown an exemplary broadcast transmitter 105 Board. 局播发射机105使用局部不使用的FM频率局部地广播数据至移动设备101 (图1)。 Bureau FM frequency broadcast transmitter 105 uses a locally unused broadcast data locally to the mobile device 101 (FIG. 1). 局播发射机在FCC部分15条例下允许低功率局部使用FM广播信道的正常音频部分运行。 Bureau broadcast transmitter allows use of low power local normal operation FM audio portion of a broadcast channel in the FCC Part 15 cases. 在这个实施例中,局播发射机被用于通过大约15米的区域传输信号。 In this embodiment, a transmitter is used for broadcast by the Bureau area transmission signal of about 15 meters. 局播发射机通过通信接口413,诸如通用串行总线(USB) 或RS-232串行,耦合至PC或其它数据源,编码数据用于传输,并直接通过嵌入的FM发射机和天线组件(assembly)传输编码的数据。 Bureau broadcast transmitter via a communication interface 413, such as a universal serial bus (USB) or RS-232 serial, is coupled to a PC or other data sources, data encoded for transmission, and by directly embedded FM transmitter and antenna assembly ( Assembly) coded data transmission. 局播发射机可被装入一个小的塑料容器中。 Bureau broadcast transmitter may be loaded into a small plastic container.

[0054] 可实现局播器的两种不同实现。 [0054] Administration can be achieved in two different broadcast is realized. 在一个实现中,局播发射机提供一个局部的、单路的数据广播至一个或多个附近的移动设备。 In one implementation, local multicast broadcasting transmitters providing a local data, a single mobile device to the one or more nearby. 这个广播可或者复制一个或两个空中信道(on-air channel),提供一个或两个局部内容信道(local-content channel),或者两者的结合。 This broadcast can either replicate one or two air channels (on-air channel), a local content channel or two (local-content channel), or a combination of both. 当在这些模式中运行,数据格式和速度与在空中信道上的相同。 When operating in these modes, the data format, and at the same speed in the air channel. 速度可被配置为高于在一个特殊的应用模式中的速度,取决于想要的范围。 Speed ​​may be configured to be higher than the speed in a special application mode, depending on the desired range.

[0055] 第二个局播器实现提供局部2路数据通信能力,这个数据通信能力既提供上述1 路广播模式又提供一个应用模式,通过它可将数据从局播器传输至手表或移动设备,并且也可从设备至局播器。 [0055] Second Board implements multicast channel 2 provides local data communication capabilities, the above-described data communication capabilities to provide both a broadcast mode and a passage mode application, through which data can be broadcast from the station transmitting to a watch or mobile device , and may also be broadcast from the device to the OLT. 这个模式,也被称为广播仿真模式,提供基于传统的握手技术对两路数据话务的应用专用确定。 This mode, also known as broadcast emulation mode to provide application-specific data to two-way traffic is determined based on the traditional handshake technique.

[0056] 在一个实施例中,如下面更全面地描述的,局播发射机包括一个到PC或相似设备的USB接口,一个控制功能,两个编码器,一个分组装配器,一个FCC部分15的直接FM调制器,和一个天线。 [0056] In one embodiment, as described more fully below, local broadcast transmitter includes a USB interface to a PC or similar device, a control function, two encoders, a packet assembler, an FCC Part 15 the direct FM modulator, and an antenna. 在天线和一个分立的模拟滤波器之外,这个组件可在一个单片电路标准单元(standard-celDASIC中实现。因此,在一个实施例中,局播发射机可由电路部件诸如ASIC、滤波器网络、晶体和天线以及一个或多个连接器组成。 In addition to the antenna and a discrete analog filter, this component may be implemented in a monolithic standard cells (standard-celDASIC Accordingly, in one embodiment, the transmitter may broadcast Bureau circuit component such as an ASIC, filter network , crystal, and antenna, and one or more connector components.

[0057] 接口401将局播发射机耦合至它的数据源。 [0057] The interface 401 is coupled to the transmitter Bureau broadcast its data source. 接口401可用任意数量的标准接口协议实现,诸如,但不限于USB、RS-232或IEEE-1394。 Interface 401 can be used any number of standard interface protocols, such as, but not limited to USB, RS-232 or IEEE-1394. 在一个实施例中,这实现为一个被组合在局播器IC(集成电路)中的IP数据块。 In one embodiment, this is implemented as a combination of an IC IP multicast Bureau data block (integrated circuit) was added. 数据源通过这个链路传输数据分组。 A packet data source via the data link transmission. 在一个实施例中,这些分组包含64个字节的数据,并且在可替换的实施例中,所传送的分组可能是68或132字节长,包括4字节的首部信息。 In one embodiment, these packets contain 64 bytes of data, and in an alternative embodiment, the transmitted packet may be 68 or 132 bytes long, including 4 bytes of header information. 这个链路的准确格式依赖于IP特性。 The exact format of this link depends on the IP features.

[0058] 控制功能403从数据源收集数据分组,并进行握手。 [0058] The control function 403 collects data from a data source packet, and a handshake. 它设定想要的传输频率、模式和信号功率。 It sets the transmission frequency, mode and signal power desired.

[0059] 编码功能405 (包括一个系统信息编码器和一个可任选的数据编码器)将用于传输的数据格式化为基带(音频)采样。 [0059] The encoding function 405 (including a system information encoder and an optional data encoder) formats the data for transmission as baseband (audio) samples. 它具有一个卷积编码器用于系统信息数据块,和一个可任选的卷积编码器用于分组数据。 It has a convolutional encoder for system information blocks, and an optional convolutional encoder for the packet data. 在从USB收集分组后,局播发射机105通过一个数据编码器处理分组。 After collecting the packet from the USB, the processing Bureau multicast packet transmitter 105 through a data encoder. 这个编码器的分组数据部分与在副载波发生器103中的数据编码器相同,除了数据白化使用一个固定的模式,与分组号码无关。 Data portion of this packet encoder and data encoder in the subcarrier generator 103, except that data whitening uses a fixed pattern, unrelated to the packet number. 这个处理由64字节的未加工的输入数据产生128字节的编码数据。 This process generates 128 bytes of encoded data from the 64 bytes of input data unprocessed. 在“turbo”或高速、短距离模式的情况下,这个编码被旁路,如在编码功能405中所示,并且将未被编码的字节直接传递至调制功能。 In the case of "turbo" or high-speed, short distance mode, this encoding is bypassed as shown in encoding function 405, and the encoded byte is not directly transmitted to the modulation function.

[0060] 处理逻辑407添加相关信息用于同步(下面描述),并且在一个实施例中,将编码的系统信息和数据交织成片断以保护数据对抗噪声。 [0060] The processing logic 407 to add information for synchronization (described below), and in one embodiment, the interleaved encoded system information and data into segments to protect against noise data embodiment. 最后所得到的位流然后被转换成基带音频样值并将结果传递至调制器。 Finally, the resulting bit stream is then converted into an audio samples and the result is transmitted to the base-band modulator.

[0061] 直接FM调制器409取得由处理部分提供的音频样值并产生FM频率输出。 [0061] The direct FM modulator 409 to obtain audio samples provided by the processing section and generates the FM frequency output. 用于局播发射机或收发机的天线411或者是环形天线或者是偶极天线,依赖于所要求的波形因数。 Authority for broadcast transmitter or a transceiver or an antenna 411 is a loop antenna or a dipole antenna, depending on the desired form factor.

[0062] 在广播仿真模式中发生一个特殊的情况。 [0062] A special case occurs in broadcast simulation mode. 首先,局播数据有效载荷必须被调整以符合广播分组的有效载荷大小。 First, local broadcast data payload must be adjusted to conform to the payload size of broadcast packets. 在一个实施例中,局播64字节有效载荷必须被调整以符合128字节的广播分组大小。 In one embodiment, the 64-byte payload broadcast bureau must be adjusted to conform to a broadcast packet size of 128 bytes. 这是通过在传输之前将广播分组分裂成两个局播分组,并在收发机固件中重新装配分组。 This is accomplished by transmitting the broadcast packet before the split into two local multicast packets and reassemble the packets in the transceiver firmware. 第二,广播分组号码通过将它们编码到局播首部中,与局部模式分组关联起来。 Second, broadcast packet numbers to encode them by the Bureau multicast header, a packet associated with the local pattern. 这些分组号码被收发机固件用于允许移动设备的微处理器取得透明于更高层软件的局部地广播的分组。 These packet numbers are used in the transceiver firmware to allow the mobile device microprocessor made transparent to higher-level software packet locally broadcast.

[0063] 数据传输格式 [0063] Data transfer format

[0064] 后面的内容是结合图5-9关于一个具体的数据格式的讨论,这个格式用于由本发明的一个实施例传输的通信。 [0064] Content is behind the discussion of Figures 5-9 in conjunction with specific data on a format, the format for communication of the transmission by one embodiment of the present invention. 虽然所公开的实施例仅是一种格式,但是通过本发明的教导, 替换方案对于本领域的熟练技术人员将变得很容易显而易见的。 Although the embodiments disclosed embodiment is only one format, but the teachings of the present invention, an alternative to the person skilled in the art will readily become apparent.

[0065] 在通信系统中在两种类型的信道上发送和接收数据:广播信道(即在广播模式中)(见图1,109)和局部信道(即在局播模式中)(见图1,111)。 [0065] In a communication system for transmitting and receiving data in both types of channels: a broadcast channel (i.e., in broadcast mode) (see FIG. 1,109) and a local channel (i.e. Bureau multicast mode) (see Figure 1 , 111). 下面讨论对等模式(见图1,117)。 Peer mode discussed below (see FIG. 1,117). 在这些信道上的数据被称为流。 A data stream is referred to in these channels. 两个信道具有不同的无线广播格式,而且可包含不同的数据,并且在一个实施例中具有相似的结构,而在可替换的实施例中具有不同的结构。 Two channels having different radio formats, but may contain different data, and in one embodiment has a similar structure, but has a different structure in alternative embodiments.

[0066] 帧是数据流中的基本划分部分。 [0066] The basic frame is divided into partial data stream. 在图5中示出一个示例帧格式501。 FIG 5 shows an example of frame format 501. 顺序地编号连续的帧。 Numbered sequentially consecutive frames. 这个计数可每天复位,在午夜之后的第一帧是帧零。 This count can be reset every day, at midnight the first frame after the frame is zero. 在广播流中,一个帧的固定长度约为113秒(1.88分钟)。 In the broadcast stream, a frame is a fixed length of approximately 113 seconds (1.88 minutes). 在局播系统中,帧是可变长度的,取决于局部消息内容。 In Bureau broadcasting system, the frame length is variable, depending on the local message content.

[0067] 分组是帧中最小的可获取的单位,包括,在一个实施例中,64字节的信息。 [0067] The packet frame is the smallest unit available, including, in one embodiment, 64 bytes of information embodiments. 在本申请中,最好在每个广播帧中有2560个分组。 In the present application, there are preferably 2560 packets in each broadcast frame. 在另一个实施例中,在一个分组中可使用1¾ 个字节,并且每个分组广播帧将包含1280个分组。 In another embodiment, 1¾ bytes may be used in a packet, and each packet broadcast frame will contain 1280 packets. 在一个帧的某个分组可被指定为快速分组。 In a packet of a frame may be designated as fast packets. 用比正常分组较少的等待时间处理和传输这些分组。 Processing and transmission of these packets with a packet less than the normal latency. 在一个所述的实施例中,在每个广播帧中有512个快速分组和2048个正常分组。 In one embodiment, there are 512 fast packets and 2048 normal packets in each broadcast frame. 在这个实施例中,分组0-2047是“正常分组”,和分组2048-2559是“快速”分组。 In this embodiment, packets 0-2047 "normal packet", and packets 2048-2559 are "fast" packets. 在一个可替换的实现中,在每个广播帧中有256 个快速分组和IOM个正常分组,分组0-1023是“正常分组”,分组一10M-1280是“快速分组”。 Implementing an alternative, there is in each broadcast frame 256 fast packets and normal packets IOM, 0-1023 packet is "normal packet", a packet 10M-1280 is a "fast packet." 分组0是一个系统分组并包含帧号码、时间和其它内务管理(houseke印ing)信息,诸如漫游局部信道频率。 Packet 0 is a system packet and contains the frame number, time, and other housekeeping (houseke print ing) information, such as roaming local channel frequencies. 局部信道分组可包含一个20字节的首部,允许局部数据在没有预先安排的情况下被传送,以及允许可变大小的局部帧。 Local channel may comprise a 20-byte packet header, to allow local data to be transmitted without prior arrangements and allows partial frame of variable size.

[0068] 在广播流中,分组由位于物理层的8个片断组成。 [0068] in the broadcast stream, packets from the physical layer located eight pieces composition. 如在图7中所示,通过时间分集, 在广播流中的片断被越过帧分布,用于衰落保护。 As shown in Figure 7, the time diversity segment in the broadcast stream are distributed across the frame, for fading protection. 如在图8中所示,每个片断包含64个数据位(在可替换的实施例中是1¾位),连同用于DSP处理的同步信息。 As shown in Figure 8, each segment contains 64 data bits (in alternative embodiments of 1¾ bits), along with synchronization information for the DSP process. 这些片断由接收机硬件重新装配,并在接收最后的片断之后很快地作为分组提供至网络层。 These fragments reassembled by the receiver hardware, and quickly provided to the network layer as a packet received after the last clip. 片断在逻辑层上是透明的,并且是不可单独地获得的。 Segment is logically transparent layer, and is not separately available. 通常,包括一个分组的16个片断(在一个可替换的实施例中是8个片断)被分布越过整个帧,直到最后的片断(靠近帧的结尾)被接收为止,整个的分组不可用。 Typically, a packet comprising 16 pieces (8 pieces in an alternative embodiment a) are distributed over the whole frame, until the last segment (near the end of the frame) is received until the entire packet is unavailable. 在“快速分组”的情况下,将8或16个片断全部都分配在四分之一的帧(有时被称为“子帧(sub-frame)”)中。 In the case of "fast packet" in the 8 or 16 segments are all assigned a quarter of the frame (sometimes called "sub-frame (sub-frame)") in. 这允许在四分之一的正常时间中分组被重新装配,并因此允许在快速分组的情况下的传输等待时间被减少四倍。 This allows packets to be reassembled in a quarter of the normal time, and thus allows the transmission of packets in case of fast waiting time is reduced fourfold. 不过,由于衰落,快速分组的错误率增加。 However, due to fading fast packet error rate of increase. 不象广播流,分组不在局播流中分布。 Unlike the broadcast stream, packets are not distributed Bureau multicast stream. 见图9的一个示例性局播分组格式。 Figure 9 is an exemplary multicast packet format bureau.

[0069] 在一个实施例中,一个物理帧可由20480 (淋2560)个片断组成。 [0069] In one embodiment, a physical frame may be 20480 (leaching 2560) composed of pieces. 每个片断由来自于2560个分组中的一个分组的部分数据和一个4符号的首部组成。 Each fragment of a packet header from the packet 2560 and a data portion consisting of 4 symbols. 在物理层,分组数据被编码,因此一个符号表示一个位(具有冗余),并且这些符号然后被分布在8个在时间上独立的片断中。 In the physical layer, the packet data is encoded so that one symbol represents one bit (with redundancy), and these symbols are then distributed in time in eight separate fragment. 这些构成正常分组的片断均勻分布遍及整个帧。 These fragments constitute a normal packet uniformly distributed throughout the frame. 用于快速分组的片断均勻分布遍及四分之一帧,也被为子帧。 For fast packet fragments are evenly distributed throughout the quarter-frame, it is also a sub-frame. 为了定时恢复和同步,每个片断具有一个由四个未加工的(未被编码的)符号构成的首部,以便每个符号表示2位(见图8)。 For timing recovery and synchronization, each segment has a header of four symbols of raw (not encoded), so that each symbol represents 2 bits (see FIG. 8). 这个首部的前3个符号是一个固定的模式,标记片断的开始。 The first three symbols of the header is a fixed pattern, marking the beginning of fragments. 这被用于定时恢复。 This is used for timing recovery. 下一个位是一个15比特线性反馈移位寄器模式(填补至16个比特)的位,它横跨16个片断首部。 The next bit is a 15-bit linear feedback shift register mode (filled to 16 bits) bits, which spans 16 segment headers. 当执行初始锁定(lock-up)时,接收机扫描进入的片断数据直到累积的LFSR(线性反馈移位寄存器)位指示出一个相关。 When performing initial lock (lock-up), the receiver scans incoming segment data until the accumulated LFSR (Linear Feedback Shift Register) bits indicating a correlation. 在一个实施例中,这可每16个片断发生一次,对于一个名义上M个片断的扫描时间。 In one embodiment, this may occur once every 16 segments, for a nominal scan time of M pieces. 当相关发生时,已经累积的16片断的索引位,表示当前的片断号码(除以16)。 When related to the occurrence, the index has accumulated a 16-bit segment, representing the current number of pieces (divided by 16). 片断索引可用格雷码(Graycode)、汉明码(Hamming code)和一致校验保护,因此可高度信赖地使用片断索引。 Gray code fragment index is available (Graycode), Hamming code (Hamming code) and parity protection, so you can use the high degree of trust fragment index. [0070] 操作模式 [0070] The mode of operation

[0071] 如前面提到的,以及在图1上所示的所公开的通信系统具有三个主要的操作模式。 [0071] As mentioned above, the communication system disclosed and illustrated in FIG. 1 has three main modes of operation. 这些是副载波广播模式(“广播”)109,局播模式(“局播”)111,和对等模式117。 These are the subcarrier broadcast mode ( "broadcast") 109, local multicast mode ( "Office broadcast") 111, 117, and peer to peer mode. 后两个模式在一个局部链路上使用直接被调制的信道FM信令,而前一模式使用在一个或多个商业FM电台的地理服务区域内的广域FM副载波广播。 After two direct mode channel FM modulated signaling over a local link, and the previous mode using the FM subcarrier broadcasts a wide area within a geographic service area of ​​one or more commercial FM stations of. 下面的讨论详述和对比这些操作模式。 The following detailed discussion and comparison of these operating modes.

[0072] 广播模式 [0072] Broadcast Mode

[0073] 广播模式包括单一的信息传送,从一个或多个广播发射机至一个或多个手表。 [0073] comprise a single broadcast mode information transmitted from one or more broadcast transmitters to one or more watches. 使用FM副载波调制以通过商业FM电台传输信息。 Using the FM subcarrier modulation by commercial FM radio stations to transmit information. 手表101、121通过嵌入在表带中的天线接收这个FM副载波,解调和解析所接收的数据并将信息传递至控制的MCU。 Watch this FM subcarrier receiver 101, 121, and parsing the received demodulated data and passes the information to the control MCU by embedding band antenna.

[0074] 局播和对等模式 [0074] bureau multicast and peer mode

[0075] 局部模式被划分成两个模式,局播模式和对等模式。 [0075] The local mode is divided into two modes, Bureau multicast mode and peer to peer mode. 这些模式共用一个共同的传输格式。 These modes share a common transmission format. 使用直接FM调制通过局部不使用的FM频率发送信息。 FM frequency of the local transmission information by using directly without using FM modulation. 手表通过嵌入在表带中的天线接收和发送这个FM信号,解调和解析所接收的数据并将信息传递至MCU。 Watches receive and transmit this FM signal, demodulation and parsing the received data and passes the information to the MCU through an antenna embedded in the band.

[0076] 局播(或局部广播)模式表示从附属于PC或其它高级控制器的局播发射机至手表或移动设备的或者1或2路传输。 [0076] Administration multicast (or local broadcast) mode represents from the station attached to the PC or other high-level controller to watch broadcast transmitters or mobile devices, or 1 or 2-channel transmission. 传输局部广播所通过的区域与广播模式传输相比是小的。 Broadcasting the transmission through the local area with a broadcast transmission mode is small compared. 在局播模式中的所传输的数据可以或者是广播模式数据的局部复制,或者是在同一格式中的局部内容,或者是通过专用应用层协议(special-application-layer protocols) 发送的应用数据。 Data transmitted in the Council broadcast mode may be either a local replication broadcast mode data, or local content in the same format, or application data sent via special application-layer protocols (special-application-layer protocols). 对等模式是一个固有地双向、半双工链路,在这个链路中信道在两个参与的手表之间切换(或“往复(ping-pong)”)。 Peer mode is inherently a two-way, half-duplex link, switching between two participating watches the channel in this link (or "shuttle (ping-pong)").

[0077] 在局播和对等模式两者的一个实施例中,局部数据模式以使用直接FSK调制的分组通信。 [0077] In one bureau both multicast and peer to peer mode embodiment, the local data packet communication mode using a direct FSK modulation. 这使用同一个1/2码率的卷积编码作为主信道。 This is done using a rate 1/2 convolutional coding the same as the primary channel. 局播通信是半双工的,并且使用一个共用的FM电台频率。 Bureau multicast communication is half-duplex, and uses a shared FM station frequency. 在任何给定的大城市区域中,FM广播频率的一个子集将是不使用的,因此可用于FCC部分15的通信。 In any given metropolitan area, a subset of the FM broadcast frequencies will be unused and therefore available for FCC Part 15 communication. 这些频率的列表可能分散在广播模式中或甚至在来自一个连接PC的局播器的局播模式中。 A list of these frequencies may be dispersed in a broadcast mode or even in a multicast mode from the connected PC Board of the Office's broadcast. 在任何事件中,MCU为收发机提供所选择的电台频率。 In any event, MCU provides radio frequency transceiver is selected. 注意一些局部信道操作排除主信道操作。 Note that some of the local channel operations preclude main channel operations. 解决在局部和广播操作之间的冲突有利于局部模式的任务。 Resolve conflicts between local and broadcast operations in favor of local task mode.

[0078] 不象广播模式,在局部模式中的分组是64字节,不是128-这部分地因为FCC部分15的周期定时(cycle timing),并且部分地因为想要保持分组周期时间足够短以允许实时双工应用,诸如语音。 [0078] Unlike the broadcast mode, packets in the local mode are 64 bytes, not 128- partly because FCC Part 15 cycle timing (cycle timing), and partly because the packet wants to keep cycle times short enough to duplex allows real-time applications such as voice.

[0079] 手表接收机操作 [0079] Watch Receiver Operating

[0080] 典型地,依据MCU命令,收发机测试一个MCU选择的电台用于主信道信号(和那个信号的步调信号),并用于副载波信号的存在。 [0080] Typically, according to the MCU command, the transceiver station for testing a selected MCU primary channel signal (and the cadence of that signal), and the presence of a subcarrier signal. 局部发现的第一部分是使用所提供的电台列表扫描FM波段并按照所观测到的用法分类可用的频率。 The first part of local discovery is to use a provided station list according to scan the FM band and observed frequencies available for usage classification. 要完成这个,用可能是一千赫兹的带宽过滤和数字化所接收的信号强度(received signal strength) (RSSI)。 To do this, use may be signal strength (received signal strength) (RSSI) and the bandwidth of the digital filter of the one thousand hertz is received. 可能的结果包括一个活动的FM电台、一个局部信道传输、或者一个空信道。 Possible results include an active FM station, a local channel transmission, or an empty channel. 手表将能够同时在所有可用于它的频率上存储跟踪信息。 The watch can be used simultaneously in all its frequency storing trace information. 活动的FM电台将理想地作为一个不可变的信号出现,或者具有显著的多径情况下作为一个可变的与我们的局播格式不相关的RSSI出现。 FM Radio Events will be ideal as an immutable signal appears, or having significant multipath situation as a variable with our office does not appear related to the broadcast format RSSI. 如果一个适当的副载波信号可在电台上检测到,则也将报告这个。 If an appropriate subcarrier signal is detectable on the radio, then this will also be reported. 局部信道传输可作为一个特定的稳定的RSSI出现,与相应于局播格式的分组间(inter-packet)电源关闭时间间隔的更低的RSSI交错。 Local channel transmission can be used as a specific and stable RSSI occurs, inter-packet format corresponding to the broadcast Board (inter-packet) power-off interval a lower RSSI interleaving. 收发机将报告有关所发现的步调信息,但是最终关于传输类型的决定应该由MCU在数据层上作出。 The transceiver will report information on the cadence found, but should eventually be made on the data layer on the type of transmission is determined by the MCU. 最后,一个空信道可具有连续的低RSSI。 Finally, an empty channel may have a continuous low RSSI.

[0081] 注意RSSI检测可发生在信号太弱以至不能可靠地解调,并且也将允许快速分析FM频谱用于局部操作。 [0081] Note that the RSSI detection can occur even weak signals can not be reliably demodulate, and will also allow rapid analysis of FM spectrum for local operation. 这允许检测参加通信的手表,在通信中它们中的一个在正常的范围之外。 This allows detection of watches to participate in communication, in addition to a normal range thereof in the communication. RSSI分析还产生所接收的交换(exchange)的近似的周期定时。 RSSI analysis also create the approximate period of the received exchange (Exchange) timing. 这样,RSSI临时分析将产生一列活动的和/或空局播信道。 Thus, RSSI interim analysis will produce an active and / or CSA multicast channel. 这个结果将被报告回MCU用于进一步的命令。 The results will be reported back to the MCU for further commands.

[0082] 依据来自MCU的命令,收发机开始发信标(beacon)或获得活动信道之一。 [0082] based on the command from the MCU, the transceiver begins beaconing (Beacon) or obtaining one of the active channels. 在后一种情况下,收发机从FM信道捕获一个分组。 In the latter case, the transceiver captures a packet from the FM channel. 然后它确定所选择的局播信号的精确定时。 It then determines the precise timing of the selected broadcast signal bureau. 这是通过接收和分析专门构造的相关序列完成的,这个序列提供即时符号定时和设备间(inter-device)时钟漂移的估计。 This is done by receiving and analyzing the specially constructed correlation sequences completed, this sequence provides immediate and symbol timing between the devices (inter-device) clock drift estimates. 一旦已经提取定时信息,收发机就捕获在后面的分组中的数据并将这个数据报告MCU。 Once the timing information has been extracted, the transceiver captures the data on the data reported in this and in subsequent MCU packet. 可能,这个分组的内容是足够使MCU采取后续的动作,后续的动作可能是一些类型的握手应答、正在取回数据的命令、分析另一个信道的命令、或者在一个空信道上发送一个信标(beacon)。 Possible, the contents of the packet are sufficient to follow the MCU operation, subsequent operations may be some sort of handshake reply, a command to retrieve data being analyzed another channel command, or an empty channel transmits a beacon (beacon).

[0083] 在一个对等连接中,发起者被作为时钟控制者对待。 [0083] In a peer to peer connection, the initiator is treated as the clock controller. 其它参与者使它的发送时钟从属于由接收的数据导出的时钟。 Other participants transmits a clock belonging to a clock derived from the received data. 这允许设置信标的同等者(peer)立即处理在第一个应答分组中的数据,而不用定时分析相位。 This allows the beaconing same person (Use the peer) to process data in the first response packet immediately, without a timing analysis phase.

[0084] 在完成任何必须的握手之后,MCU可命令收发机进入几个通信模式之一,发送和接收被传递至MCU和来自MCU的分组。 [0084] After any necessary handshaking is completed, MCU may command the transceiver to enter one of several communication modes, it is transmitted to the transmission and reception of packets from the MCU and the MCU. 这个模式继续直到另外被命令为止。 This pattern continues until another was ordered so far. 将丢失的信号作为一个意外地弱的信号质量值报告MCU。 The signal will be lost as a surprisingly weak report signal quality values ​​MCU. MCU可在这个时间上或任何其它分组间的时间上结束这个通信模式。 The MCU may end the communication mode at this time or at any other time between packets.

[0085] 手表发射机操作 [0085] Watch Transmitter Operation

[0086] 要传输的分组被MCU存储在DSP的存储器空间,在被称为传输数据块的结构中。 [0086] packet to be transmitted is stored in the MCU memory space of the DSP, the configuration is referred to as the transmission data block. 这些数据块还包含控制信息,诸如要使用的FM频率。 The data block also contains control information, FM frequency to be used, such as. 在传输之前,DSP预先过滤数据并将它转换成RTD所需的传输采样。 Before transmission, DSP pre-filters the data and converts it into a desired RTD transmission sampling. 局播物理层分组结构也在这时被添加。 Bureau multicast packet structure of a physical layer is also added at this time. 在一个实现中,512位局播分组当被提供至RTD时,变成2304字节的信号采样。 In one implementation, Bureau 512 when a multicast packet is provided to the RTD, becomes 2304 bytes of signal samples.

[0087] DSP按照当建立局部连接的时候所恢复的信息控制传输的定时,并且,在某个双工情况下,是按照所接收的最后的局部数据的定时。 [0087] DSP according to the information to establish a local connection when the recovered transmission timing control, and, in certain duplex cases, according to the last local data received timing.

[0088] 在局播模式中,RTD记录局播数据的完整周期时间。 [0088] Administration in broadcast mode, RTD Board recorded full cycle time data broadcast. 然后DSP使用所关联的RSSI 信息确定局播分组采样的位置。 RSSI information is then used to determine the position of the associated DSP Board multicast packet sampling. 使用在每个局播分组的开始和结束时的相关序列,确定其它局播设备的精细定时,并存储这个信息。 When using the related sequence of each local multicast packet start and end, determining a fine timing other local broadcast devices, and store this information. MCU现在可开始在所获得的信道上接收或发送。 MCU may now begin to receive or transmit on the acquired channel.

[0089] 虽然在前面的说明中描述了系统的各种实施例,但是本发明不限于这样的实施例,而是要覆盖所有落入所附的权利要求书的精神和范围之内的修改、替换和等价方案。 [0089] Although the various systems described in the foregoing description, embodiments of the present invention is not limited to such embodiments, but all to fall within the appended claims to cover modifications within the spirit and scope of, substitutions and equivalents.

Claims (9)

1. 一通信设备,其特征在于,包括:一局播发射机,用于基于在一副载波信道中的广播数据在一无线通信系统中使用,所述局播发射机包括:一第一接口;一耦合至所述第一接口的编码器;一耦合至所述编码器的分组装配器,所述分组装配器执行以下步骤:将经编码的系统信息交织成数据片断;将相关信息添加到所述数据片断;以及将所述数据片断转换成位流;一耦合至所述第一接口、所述编码器和所述分组装配器的控制功能;一调制器;以及一天线。 1. A communication device, comprising: a game broadcast transmitter for broadcast data based on a carrier channel in a wireless communication system, the Bureau broadcast transmitter comprising: a first interface ; a first interface coupled to the encoder; an encoder coupled to the packet assembler, said packet assembler performing the steps of: interleaving data segment via the system into the encoded information; adding information to the data segment; and the fragment data into a bit stream; a first interface coupled to the control function of the encoder and said packet assembler; and a modulator; and an antenna.
2.如权利要求1所述的通信设备,其特征在于,所述局播发射机还由一个用于一个局部地区传输系统的数据源组成。 2. The communication apparatus according to claim 1, wherein the transmitter is further broadcast by the Bureau of a data source for a local area transmission system components.
3.如权利要求1所述的通信设备,其特征在于,所述第一接口还由USB兼容的接口、 RS-232接口和IEEE-1394中的至少一个组成。 The communication device as claimed in claim 1, characterized in that at least one further composition of said first interface by the USB compatible interface, RS-232 and IEEE-1394 interfaces in.
4.如权利要求1所述的通信设备,其特征在于,所述控制功能从所述数据源收集传输分组以及执行握手功能。 4. The communication apparatus according to claim 1, wherein said control data collected from said source transmit packets, and performs handshaking functions.
5.如权利要求1所述的通信设备,其特征在于,还包括一第二编码器。 5. The communication apparatus according to claim 1, characterized by further comprising a second encoder.
6.如权利要求1所述的通信设备,其特征在于,所述局播发射机还被配置为在一个FM 波段的局部不使用部分中广播。 6. The communication apparatus according to claim 1, wherein the transmitter is further configured to broadcast Board broadcast FM band in a localized portion is not used.
7.如权利要求1所述的通信设备,其特征在于,还包括一个数据源,所述数据源还由一个人计算机系统组成。 7. The communication apparatus according to claim 1, characterized by further comprising a data source, said data source further composed of a personal computer system.
8.如权利要求1所述的通信设备,其特征在于,所述编码器还由一个用于系统信息的第一卷积编码器组成。 8. The communication apparatus according to claim 1, wherein said encoder further consists of a first convolutional encoder for system information components.
9.如权利要求8所述的通信设备,其特征在于,所述编码器还由一个用于数据的第二卷积编码器组成。 9. The communication apparatus according to claim 8, wherein said encoder further consists of a second convolutional encoder for data components.
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